Add alt text to a scheduled post in the composer's alt text field for each image, describing what it shows for people using screen readers. SkedCast offers the field only on platforms whose publishing API delivers alt text, so it never silently drops, and the bulk import sheet has an altText column for batches.
Key takeaways
- Alt text is supported when scheduling with SkedCast on Bluesky, Facebook, Instagram, LinkedIn, and Threads, plus X.
- It is not currently supported through SkedCast on TikTok, YouTube, Pinterest, or Telegram — on Pinterest the platform supports alt text, but SkedCast does not send it; add it in Pinterest after the Pin publishes.
- Where it’s unsupported, add alt text directly in the platform’s own app after a post publishes, if the platform offers that.
Alt text for scheduled social media posts: where SkedCast supports alt text today
The composer offers an alt-text field, and SkedCast sends it to the platform, on each of these:
- X (Twitter) — per-image alt text
- LinkedIn — per-image alt text
- Instagram — per-image and per-video alt text
- Facebook — per-image alt text
- Threads — per-image alt text
- Bluesky — per-image alt text
Where it isn’t supported
On the remaining platforms, SkedCast’s composer does not offer an alt-text field when scheduling a post:
- TikTok — TikTok’s Content Posting API has no alt-text field for scheduled posts.
- YouTube — the Data API used for uploads has no image alt-text concept (YouTube videos don’t carry image alt text the way a feed image post does).
- Pinterest — Pinterest’s own Pin editor supports alt text, but SkedCast does not send it; add it in Pinterest after the Pin publishes if you need it.
- Telegram — the Bot API SkedCast publishes through has no alt-text field on photo messages.
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FAQ
- Can I add alt text when scheduling an Instagram post with SkedCast?
- Yes — Instagram is one of the platforms where SkedCast’s composer offers a real alt-text field per image or video, and it’s sent through to Instagram at publish time.
- Does Pinterest support alt text at all?
- Yes, Pinterest’s own Pin editor supports alt text — but SkedCast doesn’t send it through the API when scheduling a Pin yet. If you need alt text on a specific Pin, add it directly in Pinterest after it publishes.
- Can I add alt text in a bulk import?
- Yes. SkedCast's bulk import has an altText column, so every image in a batch can carry its description.
- Why does alt text matter for social media?
- It describes an image for people using screen readers, and some networks use it to understand what the image shows.
- What makes good alt text?
- One or two plain sentences describing what the image shows and why it matters to the post, without starting with 'image of'.